The complexity of sustainably developing research software is still largely
underrated and the question how to guarantee visibility and fair attribution of these efforts...
The project "Realisierung von Beschleunigungsstrategien der anwendungsorientierten Mathematik und Informatik für optimierende Energiesystemmodelle" ("BEAM-ME"), which is...
A major aim of the Research Campus MODAL is the development and use of mathematical synergies between the individual labs of the network. In this context, the fields of...
Many real world problems can be modeled as mixed integer programs (MIPs) or mixed integer nonlinear programs (MINLPs). This project aims at developing tools for modeling...
A parallel branch-and-bound heuristic for the integrated long-haul and local vehicle routing problem on an adaptive transportation network
Computers & Operations Research, Vol.165, 2024 (epub ahead of print)
Junko Hosoda, Stephen J. Maher, Yuji Shinano, Jonas Christoffer Villumsen
BibTeX DOI
An exceptionally difficult binary quadratic optimization problem with symmetry: a challenge for the largest unsolved QAP instance Tai256c
Optimization Letters, 2024 (epub ahead of print)
Koichi Fujii, Sunyoung Kim, Masakazu Kojima, Hans D. Mittelmann, Yuji ShinanoBibTeX DOI
A parallel branch-and-bound heuristic for the integrated long-haul and local vehicle routing problem on an adaptive transportation network
ZIB-Report 23-02
Junko Hosoda, Stephen J. Maher, Yuji Shinano, Jonas Christoffer Villumsen
PDF BibTeX URN
An Exceptionally Difficult Binary Quadratic Optimization Problem with Symmetry: a Challenge for The Largest Unsolved QAP Instance Tai256c
ZIB-Report 23-27
Koichi Fujii, Sunyoung Kim, Masakazu Kojima, Hans D. Mittelmann, Yuji ShinanoPDF BibTeX URN
An effective approach for deriving and evaluating approximate optimal design solutions of energy supply systems by time series aggregation
Frontiers in Energy Research, Vol.11, pp. 1-14, 2023
Ryohei Yokoyama, Yuji Shinano, Tetsuya Wakui
BibTeX DOI
Development and analysis of massive parallelization of a lattice basis reduction algorithm
Japan Journal of Industrial and Applied Mathematics, 40(1), pp. 13-56, 2023
Nariaki Tateiwa, Yuji Shinano, Masaya Yasuda, Shizuo Kaji, Keiichiro Yamamura, Katsuki Fujisawa
BibTeX DOI
Construction of Mathematical Basis for Realizing Data Rating Service
Vol.90, Katsuki Fujisawa, Shizuo Kaji, Toru Ishihara, Masaaki Kondo, Yuji Shinano, Takuji Tanigawa, Naoko Nakayama (Eds.), Institute of Mathematics for Industry, Kyushu University: Graduate School of Mathematics, Kyushu University Motooka 744, Nishi-ku, Fukuoka, 819-0395, JAPAN, 2022
BibTeX
Day and time aggregations for optimal design of energy supply systems with storage units by a hierarchical MILP method
PROCEEDINGS OF ECOS 2022 - THE 35 TH INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS, pp. 1891-1902, 2022 (in press)
Ryohei Yokoyama, Yuji Shinano, Tetsuya Wakui
BibTeX
Day and time aggregations for optimal design of energy supply systems with storage units by a hierarchical MILP method
The 35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2022), pp. 1891-1902, 2022
Ryohei Yokoyama, Yuji Shinano, Tetsuya Wakui
BibTeX
Evaluation of robustness in multiple performance criteria for designing energy supply systems based on a mixed-integer linear model
Proceedings of the 35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2022), pp. 1937-1948, 2022 (in press)
Ryohei Yokoyama, Yuto Hiramatsu, Yuji Shinano, Tetsuya Wakui
BibTeX
Evaluation of robustness in multiple performance criteria for designing energy supply systems based on a mixed-integer linear model
The 35th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2022), pp. 1937-1948, 2022
Ryohei Yokoyama, Yuto Hiramatsu, Yuji Shinano, Tetsuya Wakui
BibTeX
Location, transshipment and routing: An adaptive transportation network integrating long-haul and local vehicle routing
EURO Journal on Transportation and Logistics, Vol.11, 2022 (preprint available as ZIB-Report 21-12)
Junko Hosada, Stephen Maher, Yuji Shinano, Jonas Christoffer Villumsen
PDF (ZIB-Report) BibTeX DOI
The Largest Unsolved QAP Instance Tai256c Can Be Converted into A 256-dimensional Simple BQOP with A Single Cardinality Constraint
ZIB-Report 22-18
Koichi Fujii, Sunyoung Kim, Masakazu Kojima, Hans D. Mittelmann, Yuji ShinanoPDF BibTeX URN DOI
A hierarchical optimization approach to robust design of energy supply systems based on a mixed-integer linear model
Energy, Vol.229, 2021 (epub ahead of print)
Ryohei Yokoyama, Hiroki Kamada, Yuji Shinano, Tetsuya Wakui
BibTeX DOI
Effect of model reduction by time aggregation in multiobjective optimal design of energy supply systems by a hierarchical MILP method
Energy, Vol.228, 2021 (epub ahead of print)
Ryohei Yokoyama, Kotaro Takeuchi, Yuji Shinano, Tetsuya Wakui
BibTeX DOI
MILP. Try. Repeat.
Proceedings of the 13th International Conference on the Practice and Theory of Automated Timetabling - PATAT 2021, Vol.2, 2021
Timo Berthold, Thorsten Koch, Yuji ShinanoBibTeX
SCIP-Jack: An exact high performance solver for Steiner tree problems in graphs and related problems
Modeling, Simulation and Optimization of Complex Processes HPSC 2018, LNCS, 2021
Daniel Rehfeldt, Yuji Shinano, Thorsten KochBibTeX DOI
A Hierarchical Optimization Approach to Robust Design of Energy Supply Systems Based on a Mixed-Integer Linear Model
Conference, pp. 601-613, International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2020 (in press)
Ryohei Yokoyama, Hiroki Kamada, Yuji Shinano, Tetsuya Wakui
BibTeX
Effect of Model Reduction by Time Aggregation in Multiobjective Optimal Design of Energy Supply Systems by a Hierarchical MILP Method
Conference, pp. 627-639, International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2020 (in press)
Ryohei Yokoyama, Kotaro Takeuchi, Yuji Shinano, Tetsuya Wakui
BibTeX
Massive Parallelization for Finding Shortest Lattice Vectors Based on Ubiquity Generator Framework
2020 SC20: International Conference for High Performance Computing, Networking, Storage and Analysis (SC), pp. 834-848, 2020
Yuji Shinano, N. Tateiwa, S. Nakamura, A. Yoshida, M. Yasuda, S. Kaji, K. Fujisawa
BibTeX DOI
An Easy Way to Build Parallel State-of-the-art Combinatorial Optimization Problem Solvers: A Computational Study on Solving Steiner Tree Problems and Mixed Integer Semidefinite Programs by using ug[SCIP-*,*]-libraries
Proceedings of the 9th IEEE Workshop Parallel / Distributed Combinatorics and Optimization, pp. 530-541, 2019 (preprint available as ZIB-Report 19-14)
Yuji Shinano, Daniel Rehfeldt, Tristan Gally
PDF (ZIB-Report) BibTeX DOI
Building Optimal Steiner Trees on Supercomputers by Using up to 43,000 Cores
Integration of Constraint Programming, Artificial Intelligence, and Operations Research. CPAIOR 2019, pp. 529-539, Vol.11494, LNCS, 2019 (preprint available as ZIB-Report 18-58)
Yuji Shinano, Daniel Rehfeldt, Thorsten KochPDF (ZIB-Report) PDF (ZIB-Report) BibTeX DOI
Evaluation of Design Alternatives for a Gas Turbine Cogeneration Plant Based on Multiobjective K-Best Solutions
International Conference on Power Engineering-2019, pp. 1112-1117, 2019
Ryohei Yokoyama, Yuji Shinano, Tetsuya Wakui
BibTeX
Model reduction by time aggregation for optimal design of energy supply systems by an MILP hierarchical branch and bound method
Energy, Vol.181, pp. 782-792, 2019
Ryohei Yokoyama, Yuji Shinano, Yuki Wakayama, Tetsuya Wakui
BibTeX
Model reduction by time aggregation for optimal design of energy supply systems by an MILP hierarchical branch and bound method
Energy, Vol.181, pp. 782-792, 2019
Ryohei Yokoyama, Yuji Shinano, Yuki Wakayama, Tetsuya Wakui
BibTeX DOI
Operation-based time-period clustering for optimal design of energy supply systems by a hierarchical MILP method
THE 32ND INTERNATIONAL CONFERENCE ON EFFICIENCY, COST, OPTIMIZATION, SIMULATION AND ENVIRONMENTAL IMPACT OF ENERGY SYSTEMS(ECOS 2019), pp. 527-539, 2019
Ryohei Yokoyama, Yuji Shinano, Kotaro Takeuchi, Tetsuya Wakui
BibTeX
Search for K-best solutions in optimal design of energy supply systems by an extended MILP hierarchical branch and bound method
Energy, Vol.184, pp. 45-57, 2019
Ryohei Yokoyama, Yuji Shinano, Syusuke Taniguchi, Tetsuya Wakui
BibTeX DOI
Model Reduction by Time Aggregation for Optimal Design of Energy Supply Systems by an MILP Hierarchical Branch and Bound Method
Proceedings of the 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2018), 2018
Ryohei Yokoyama, Yuji Shinano, Yuki Wakayama, Tetsuya Wakui
BibTeX
ParaXpress: An Experimental Extension of the FICO Xpress-Optimizer to Solve Hard MIPs on Supercomputers
Optimization Methods & Software, 33(3), pp. 530-539, 2018
Yuji Shinano, Timo Berthold, Stefan HeinzBibTeX DOI
Parallel Solvers for Mixed Integer Linear Optimization
Handbook of Parallel Constraint Reasoning, pp. 283-336, Youssef Hamadi (Ed.), Springer Nature, 2018 (preprint available as ZIB-Report 16-74)
Ted Ralphs, Yuji Shinano, Timo Berthold, Thorsten KochPDF (ZIB-Report) BibTeX DOI
The Ubiquity Generator Framework: 7 Years of Progress in Parallelizing Branch-and-Bound
Operations Research Proceedings 2017, pp. 143-149, 2018 (preprint available as ZIB-Report 17-60)
Yuji ShinanoPDF (ZIB-Report) BibTeX DOI
Distributed Domain Propagation
16th International Symposium on Experimental Algorithms (SEA 2017), pp. 6:1-6:11, Vol.75, Leibniz International Proceedings in Informatics (LIPIcs), 2017 (preprint available as ZIB-Report 16-71)
Robert Lion Gottwald, Stephen J. Maher, Yuji ShinanoPDF (ZIB-Report) BibTeX DOI
Multiobjective Optimal Design of a Gas Turbine Cogeneration Plant by a Revised Hierarchical Optimization Method
ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, pp. 1-14, Vol.3, 2017
Ryohei Yokoyama, Yuji Shinano, Yuki Wakayama, Tetsuya Wakui
BibTeX DOI
A First Implementation of ParaXpress: Combining Internal and External Parallelization to Solve MIPs on Supercomputers
Mathematical Software - ICMS 2016, 5th International Conference Berlin, Germany, July 11-14, 2016 Proceedings, pp. 308-316, 2016
Yuji Shinano, Timo Berthold, Stefan HeinzBibTeX DOI
Evaluation of Performance Robustness of a Gas Turbine Cogeneration Plant Based on a Mixed-Integer Linear Model
ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, pp. 1-9, Vol.3, ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition, 2016
Ryohei Yokoyama, Ryo Nakamura, Tetsuya Wakui, Yuji ShinanoBibTeX DOI
Solving Open MIP Instances with ParaSCIP on Supercomputers using up to 80,000 Cores
Proc. of 30th IEEE International Parallel & Distributed Processing Symposium, 2016 (preprint available as ZIB-Report 15-53)
Yuji Shinano, Tobias Achterberg, Timo Berthold, Stefan Heinz, Thorsten Koch, Michael Winkler
PDF (ZIB-Report) PDF (ZIB-Report) BibTeX DOI
Generation of multiple best solutions in multiobjective optimal design of energy supply systems
Proceedings of the 15th International Conference on Power Engineering. ICOPE 2015, 2015
Ryohei Yokoyama, Yuji Shinano, Syusuke Taniguchi, Masashi Ohkura, Tetsuya Wakui
BibTeX DOI
MILP Approaches to Optimal Design and Operation of Distributed Energy Systems
Optimization in the Real World, Springer, pp. 157-176, 2015, ISBN: 978-4-431-55419-6
Ryohei Yokoyama, Yuji ShinanoBibTeX DOI
Optimization in the Real World
Mathematics for Industry (MFI), Vol.13, Springer Tokyo Heidelberg New York Dordrecht London, 2015, ISBN: 978-4-431-55419-6
Katsuki Fujisawa, Yuji Shinano, Hayato Waki
BibTeX DOI
Optimization of energy supply systems by MILP branch and bound method in consideration of hierarchical relationship between design and operation
Energy Conversion and Management, Vol.92, pp. 92-104, 2015 (preprint available as ZIB-Report 14-09)
Ryohei Yokoyama, Yuji Shinano, Syusuke Taniguchi, Masashi Ohkura, Tetsuya Wakui
PDF (ZIB-Report) BibTeX DOI
Optimizing Movement Sequences for Step-and-Scan Lithography Equipment
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 7(4), pp. 608-618, 2013
Yuji Shinano, Nobuo Inui, Youzou Fukagawa, Noburu Takakura
BibTeX DOI
制約整数計画ソルバ SCIP の並列化
統計数理, 61(1), pp. 47-78, 2013 (in press)
Yuji Shinano, Tobias Achterberg, Timo Berthold, Stefan Heinz, Thorsten Koch, Stefan Vigerske, Michael Winkler
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